CN101179695A - Method for implementing recorded broadcast of session, session television system and terminal - Google Patents
Method for implementing recorded broadcast of session, session television system and terminal Download PDFInfo
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- CN101179695A CN101179695A CNA2007101787156A CN200710178715A CN101179695A CN 101179695 A CN101179695 A CN 101179695A CN A2007101787156 A CNA2007101787156 A CN A2007101787156A CN 200710178715 A CN200710178715 A CN 200710178715A CN 101179695 A CN101179695 A CN 101179695A
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Abstract
The invention discloses a conference video terminal including a recording and playing module and a saving module. The recording module is used for recording and playing a media bit stream transmitted and/or received by the conference video terminal; and the memory module is used for saving the recorded media bit stream. The invention also provides a method for realizing conference recording and playing and a conference video system. The method of conference recording and playing of the invention is easy for realization; besides, the conference video terminal and the system of the invention are capable of being recorded and played of all medias with a good flexibility.
Description
Technical field
The present invention relates to the multimedia communication technology field, relate in particular to a kind of method, TV conference system and terminal that realizes recorded broadcast of session.
Background technology
Along with continuing to bring out of Digital Signal Processing, compression coding technology and transfer of data new technology, TV conference system is arisen at the historic moment.TV conference system is to utilize TV tech and equipment by various transmission networks, sets up the system of the video and audio communication between a plurality of users.The purpose of TV conference system is that the video conference terminal in a plurality of places that are separated by is linked together, and makes the participant of each side face the scene just like body and has a meeting together, the experience of talking with face-to-face.
In actual applications, the user is about to conference content and notes as the data preservation or playback after waiting until through the demand that regular meeting proposes recorded broadcast of session.Realize video conference recorded broadcast function by media server in the prior art, as shown in Figure 1, Fig. 1 is that the system that realizes recorded broadcast of session in the prior art forms structural representation.Each video conference terminal of conference participation is by multipoint control unit (MCU in this system, MultipointControl Unit) intercoms mutually, MCU is the necessaries that carries out multipoint videoconference, major function is: finish the processing and the exchange of multi-channel video/audio data stream, select source traffic to broadcast, multiple session control function etc. is provided.Media server is in order to realize the recorded broadcast of session function, in the process that meeting is held, MCU broadcasts the media code stream of selected video conference terminal, and the medium code stream that will broadcast is according to the format conversion of media server and send to media server and preserve; When needs carried out the meeting playback, media server sent to MCU with the medium code stream of storage, converted the form that meeting uses to by MCU again and was broadcast to other video conference terminals, thereby realize the meeting playback in the whole meeting scope.
In the TV conference system of prior art, the function of recorded broadcast of session is realized by media server fully, video conference terminal is the recorded broadcast of conference participation not, the video conference terminal of prior art is formed structural representation as shown in Figure 2, as the medium transmitting terminal, audio frequency, video information that video conference terminal collects audio-source, video source are encoded, again through sending to transmission network after multiplexing or the packing; As media receiving end, video conference terminal will carry out demultiplexing from the media code stream that transmission network receives or unpack, and send to audio amplifier again behind audio frequency, video decode, display is play.
In sum, TV conference system of the prior art need be passed through the recorded broadcast that special-purpose media server is realized meeting, owing to carry out operations such as data interaction, media format conversion between MCU needs and the media server, therefore need carry out bigger change to original MCU, thereby increase the complexity and the cost of TV conference system; And because the restriction of MCU and media server resources, existing TV conference system can't realize the recorded broadcast of all video conference terminal medium, can only realize the recorded broadcast of the video conference terminal medium of broadcasting, and flexibility is relatively poor.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method, TV conference system and terminal that realizes recorded broadcast of session, to solve the TV conference system complex structure of realizing the recorded broadcast function in the prior art, the defective of very flexible.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of video conference terminal, comprising:
The recorded broadcast module is used for the media code stream that described video conference terminal sends and/or receives is recorded and play;
Memory module is used to store the described medium code stream of recording.
Described recorded broadcast module comprises:
The medium code stream is recorded submodule, is used for described memory module is recorded and offered to the media code stream that described video conference terminal sends and/or receives;
The medium code stream extracts submodule, extracts the medium code stream from described memory module when being used for the meeting playback.
Described recorded broadcast module also comprises: the format conversion submodule is used for that described media code circulation of recording is changed to storage agreement form and offers described memory module and/or the media code circulation that described memory module is extracted is changed to meeting agreement form.
The present invention also provides a kind of TV conference system, comprising:
Video conference terminal is used for the media code stream that sends and/or receive is recorded and play;
Multipoint control unit is used for the media code stream that receives described video conference terminal is selectively broadcasted.
Described video conference terminal comprises:
The recorded broadcast module is used for the media code stream that described video conference terminal sends and/or receives is recorded and play;
Memory module is used to store the described medium code stream of recording.
Described recorded broadcast module comprises:
The medium code stream is recorded submodule, is used for described memory module is recorded and offered to the media code stream that described video conference terminal sends and/or receives;
The medium code stream extracts submodule, extracts the medium code stream from described memory module when being used for the meeting playback.
Described recorded broadcast module also comprises: the format conversion submodule is used for that described media code circulation of recording is changed to storage agreement form and offers described memory module and/or the media code circulation that described memory module is extracted is changed to meeting agreement form.
The present invention also provides a kind of method that realizes recorded broadcast of session, comprising:
Video conference terminal is recorded the media code stream that sends and/or receive;
During the meeting playback, described video conference terminal extracts the media code stream of recording and plays.
Described the media code stream that sends and/or receive is recorded after, also comprise: described video conference terminal is changed to storage agreement form with the media code circulation of recording and stores.
The media code stream that described extraction is recorded also comprises before playing: described video conference terminal is changed to meeting agreement form with the media code circulation of extracting.
Compared with prior art, the present invention has the following advantages:
The present invention realizes the recorded broadcast of session function by set up recorded broadcast module and memory module on video conference terminal by video conference terminal, need not to change existing MCU and sets up media server, realizes simple; And video conference terminal of the present invention can be realized the recorded broadcast of all medium, and is not limited only to the recorded broadcast of broadcast terminal medium, has better flexibility.
Description of drawings
Fig. 1 is that the system that realizes recorded broadcast of session in the prior art forms structural representation;
Fig. 2 is the composition structural representation of video conference terminal in the prior art;
Fig. 3 is the composition structural representation of a kind of video conference terminal of the present invention;
Fig. 4 is a kind of flow chart of realizing the recorded broadcast of session method of the present invention;
Fig. 5 is the composition structural representation of TV conference system of the present invention;
Fig. 6 is the realization recorded broadcast of session method flow diagram of the embodiment of the invention one;
Fig. 7 is the realization recorded broadcast of session method flow diagram of the embodiment of the invention two.
Embodiment
The technical solution of the present invention is further elaborated below in conjunction with the drawings and specific embodiments.
The present invention realizes recorded broadcast of session by recorded broadcast module and memory module are set by video conference terminal on video conference terminal, as shown in Figure 3, Fig. 3 is the composition structural representation of a kind of video conference terminal of the present invention.Video conference terminal provided by the invention comprises: recorded broadcast module and memory module.The recorded broadcast module is used for the media code stream that this video conference terminal sends and/or receives is carried out recorded broadcast, and described recorded broadcast is meant records and play.Memory module is used to store the medium code stream that the recorded broadcast module is recorded.Wherein, the recorded broadcast module comprises: the medium code stream records submodule and the medium code stream extracts submodule, and can further comprise the format conversion submodule.The medium code stream is recorded submodule, is used for the media code stream that video conference terminal sends and/or receives is recorded, and the medium code stream of recording is offered memory module stores.The medium code stream extracts submodule, extracts corresponding medium code stream from memory module when being used for the meeting playback, the medium code stream that extracts is offered look, the audio decoder module, realize the playback of medium code stream.The format conversion submodule connects that the medium code stream is recorded submodule and the medium code stream extracts submodule, is used for that the medium code stream is recorded the media code circulation that submodule records and is changed to storage agreement form, stores for memory module; And/or the medium code stream is extracted the media code circulation that submodule extracted be changed to meeting agreement form, play for video conference terminal.It is pointed out that this memory module can be realized by jumbo memory device in actual applications, for example USB flash disk, hard disk etc., and the medium code stream of storing in this memory module can directly copy on computer or other players and plays.In addition in actual applications, the inside configuration of video conference terminal of the present invention, look, still keep original annexation between audio coding module and multiplexing or the packetization module, look, also still keep original annexation between audio decoder module and demultiplexing or the parse module, thereby guarantee that under the idle situation of recorded broadcast module this video conference terminal still can normally carry out the transmission of medium code stream and receive operation.
Adopt the TV conference system of video conference terminal shown in Figure 3 among the present invention, as shown in Figure 5, because video conference terminal self can be realized the recorded broadcast function of video conferencing, therefore TV conference system of the present invention can not re-use media server, and the structure of TV conference system is simplified.
Below video conference terminal of the present invention shown in Figure 3 is realized that the method for recorded broadcast of session is described in detail, as shown in Figure 4, Fig. 4 is a kind of flow chart of realizing the recorded broadcast of session method of the present invention, mainly may further comprise the steps:
Video conference terminal of the present invention is as the transmitting terminal of medium code stream, to record through sending to the recorded broadcast module behind audio frequency, the video coding respectively by audio frequency, vision signal that audio-source, video source collect, and be stored in the memory module after by the recorded broadcast module circulation of the media code recorded being changed to storage agreement form, send to transmission network after handling via multiplexing or packing again through this medium code stream after the recorded broadcast resume module.Video conference terminal of the present invention is as the receiving terminal of medium code stream, to carry out demultiplexing from the media code stream that transmission network receives or unpack after send to the recorded broadcast module and record, and be stored in the memory module after by the recorded broadcast module circulation of the media code recorded being changed to storage agreement form, through this medium code stream after the recorded broadcast resume module again through send to audio amplifier behind audio frequency, the video decode, display is play.
The medium code stream of being stored in the memory module can be used as data and preserves, and in the time of need carrying out the meeting playback, the recorded broadcast module can directly be extracted corresponding medium code stream from this memory module.If will realize the playback of meeting on self video conference terminal, then the media code circulation of extracting is changed to meeting agreement form and sends to audio frequency, video decode module, after decoding, play by audio amplifier, display; If will realize the playback of meeting in whole meeting scope, then the media code circulation of extracting being changed to meeting agreement form sends to multiplexing or packetization module, after handling, multiplexing or packing send to transmission network, after this medium code stream is received by MCU again the form with broadcasting send to video conference terminal in the whole meeting scope, thereby realize the playback on the video conference terminal of this medium code stream in whole meeting scope.
TV conference system of the present invention adopts the TV conference system of video conference terminal of the present invention shown in Figure 3 no longer to need the participation of media server, because video conference terminal self can be realized the recorded broadcast function of meeting as shown in Figure 4.TV conference system of the present invention shown in Figure 4 is made up of with each video conference terminal that is connected MCU MCU, because each video conference terminal of conference participation all has the function of recorded broadcast of session, therefore each video conference terminal both can carry out recorded broadcast to the media code stream that self sends, also can carry out recorded broadcast, have better flexibility and practicality the media code stream of the broadcasting that receives.MCU in this TV conference system then is responsible for the medium code stream that receives selectively is broadcast to each video conference terminal, has the MCU in the TV conference system of recorded broadcast function compared to existing technology, MCU among the present invention need not to carry out alternately with media server, need not to carry out the format conversion of medium code stream, thereby reduced the workload of MCU, simplified the operation of MCU.
Below in conjunction with specific embodiment the invention described above is realized that the method for recorded broadcast of session further elaborates.As shown in Figure 6, Fig. 6 is the flow chart of the realization recorded broadcast of session method of the embodiment of the invention one, and as the transmitting terminal of medium code stream in the meeting, video conference terminal of the present invention realizes that the method for recorded broadcast of session mainly may further comprise the steps:
Step 601, from look, audio coding module receiving media code stream, be stored in and send in the buffering area.
Via look, after audio-source collects looks, audio signal is admitted to and looks, the audio coding module is encoded, this medium code stream is stored in the transmission buffering area of video conference terminal and is ready for sending.
Step 602 judges whether to record code stream, if then forward step 603 to; Otherwise, forward step 604 to.
Before the medium code stream in the step 601 was sent, video conference terminal at first judged whether and need record this media code stream, records if desired, then forwards step 603 to; If do not need to record, then forward step 604 to.
Step 603 is changed to storage agreement form with the media code circulation that receives, and is stored in the memory module.
In the time of need carrying out the recording of medium code stream, the recorded broadcast module of video conference terminal is changed to storage agreement form with the media code circulation that receives in the step 601, and the medium code stream after will changing is recorded and is stored in the memory module with document form.Because in conference process, the audio frequency that video conference terminal receives, video media code stream are separated from each other, when this media code stream is stored, audio frequency, video media code stream must be mixed and store, be converted to storage agreement form, thereby guarantee the synchronous of audio frequency, video.
Step 604 judges whether the playback code stream, if then forward step 605 to; Otherwise, forward step 608 to.
No matter whether the media code stream in the step 601 is carried out recording and storing, video conference terminal need all will judge whether the playback code stream, and so-called playback code stream i.e. the medium code stream of its storage of playback on video conference terminal, and playback if desired then forwards step 605 to; Otherwise, forward step 608 to.
Step 605 is extracted corresponding medium code stream.
Need carry out media code and flow back to when putting, this video conference terminal extracts the medium code stream that need carry out playback.
Step 606 is changed to meeting agreement form with the media code circulation of extracting.
Video conference terminal is changed to the meeting agreement form that can play-over with the media code circulation of extracting, and the medium code stream after the conversion is play on this video conference terminal.
Step 607 is stored in the medium code stream after the conversion in the transmission buffering area.
Medium code stream after video conference terminal will be changed is stored in and sends in the buffering area, stored in the transmission buffering area with replacement step 601 from the medium code stream of looking, the audio coding module receives.
Step 608 sends to multiplexing the medium code stream that sends in the buffering area or packetization module.
If the aforementioned operation of having carried out step 604 to step 607, then sending what store in the buffering area is the medium code stream that carries out playback, this medium code stream sends to multiplexing or packetization module, after multiplexing or packing, send to transmission network, receive by MCU again and other video conference terminals that this medium code stream sends in the TV conference system are play, thereby realized the playback of this medium code stream in whole meeting scope in the mode of broadcasting.If the aforementioned operation that does not have execution in step 604 to 607, then sending what store in the buffering area is from the medium code stream of looking, the audio coding module receives in the step 601, this medium code stream sends to multiplexing or packetization module, after multiplexing or packing, send to transmission network, selectively broadcast after receiving by MCU.
Again as shown in Figure 7, Fig. 7 is the flow chart of the realization recorded broadcast of session method of the embodiment of the invention two, and as the receiving terminal of medium code stream in the meeting, video conference terminal of the present invention realizes that the method for recorded broadcast of session mainly may further comprise the steps:
Step 701 from demultiplexing or parse module receiving media code stream, is stored in the reception buffering area.
The media code stream that receives from transmission network is sent to receive in the buffering area and stores through demultiplexing or after unpacking.
Step 702 judges whether to record code stream, if then forward step 703 to; Otherwise, forward step 704 to.
Video conference terminal judges whether and need record the media code stream that receives, if desired, then forwards step 703 to; Otherwise forward step 704 to.
Step 703 changes this media code circulation into storage agreement form, is stored in the memory module.
In the time of need carrying out the recording of medium code stream, the recorded broadcast module of video conference terminal is changed to storage agreement form with this media code circulation that receives in the step 701, and the medium code stream after will changing is recorded and is stored in the memory module.
Step 704 judges whether the playback code stream, if then forward step 705 to; Otherwise, forward step 708 to.
No matter whether the media code stream that receives in the step 701 is carried out recording and storing, video conference terminal need all will judge whether the playback code stream, so-called playback code stream i.e. its medium code stream that received originally of playback on this video conference terminal, and playback if desired then forwards step 705 to; Otherwise, forward step 708 to.
Step 705 is extracted corresponding medium code stream.
In the time of need carrying out the playback of medium code stream, this video conference terminal extracts the medium code stream that need carry out playback.
Step 706 is changed to meeting agreement form with the media code circulation of extracting.
Video conference terminal is changed to the media code circulation of extracting the meeting agreement form that can play-over.
Step 707 is stored in the medium code stream after the conversion in the reception buffering area.
Medium code stream after the recorded broadcast module will be changed is stored in and receives in the buffering area, the medium code stream of being stored in the reception buffering area with replacement step 701 that receives from demultiplexing or parse module.
Step 708, with receive medium code stream in the buffering area send to look, the audio decoder module.
If the aforementioned operation of having carried out step 704 to step 707, then receiving what store in the buffering area is the medium code stream that carries out playback, this medium code stream by receive buffering area send to look, the audio decoder module, after decoding, send to audio amplifier, display is play, thereby realize the playback of meeting on this video conference terminal.If the aforementioned operation that does not have execution in step 704 to step 707, then receiving what store in the buffering area is the medium code stream that receives from demultiplexing or parse module in the step 701, this medium code stream by receive buffering area send to look, the audio decoder module, through the decoding after send to audio amplifier, display is play, and has realized this broadcast of medium code stream on this conference terminal.
In sum, the present invention realizes the recorded broadcast of session function by set up recorded broadcast module and memory module on video conference terminal by video conference terminal, need not to change MCU and sets up media server, realizes simple; And video conference terminal of the present invention can be realized the recorded broadcast of all medium, and is not limited only to the recorded broadcast of broadcast terminal medium, has better flexibility.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1. a video conference terminal is characterized in that, comprising:
The recorded broadcast module is used for the media code stream that described video conference terminal sends and/or receives is recorded and play;
Memory module is used to store the described medium code stream of recording.
2. according to the described video conference terminal of claim 1, it is characterized in that described recorded broadcast module comprises:
The medium code stream is recorded submodule, is used for described memory module is recorded and offered to the media code stream that described video conference terminal sends and/or receives;
The medium code stream extracts submodule, extracts the medium code stream from described memory module when being used for the meeting playback.
3. according to the described video conference terminal of claim 2, it is characterized in that, described recorded broadcast module also comprises: the format conversion submodule is used for that described media code circulation of recording is changed to storage agreement form and offers described memory module and/or the media code circulation that described memory module is extracted is changed to meeting agreement form.
4. a TV conference system is characterized in that, comprising:
Video conference terminal is used for the media code stream that sends and/or receive is recorded and play;
Multipoint control unit is used for the media code stream that receives described video conference terminal is selectively broadcasted.
5. according to the described TV conference system of claim 4, it is characterized in that described video conference terminal comprises:
The recorded broadcast module is used for the media code stream that described video conference terminal sends and/or receives is recorded and play;
Memory module is used to store the described medium code stream of recording.
6. according to the described TV conference system of claim 5, it is characterized in that described recorded broadcast module comprises:
The medium code stream is recorded submodule, is used for described memory module is recorded and offered to the media code stream that described video conference terminal sends and/or receives;
The medium code stream extracts submodule, extracts the medium code stream from described memory module when being used for the meeting playback.
7. according to the described TV conference system of claim 6, it is characterized in that, described recorded broadcast module also comprises: the format conversion submodule is used for that described media code circulation of recording is changed to storage agreement form and offers described memory module and/or the media code circulation that described memory module is extracted is changed to meeting agreement form.
8. a method that realizes recorded broadcast of session is characterized in that, comprising:
Video conference terminal is recorded the media code stream that sends and/or receive;
During the meeting playback, described video conference terminal extracts the media code stream of recording and plays.
9. the method for described according to Claim 8 realization recorded broadcast of session, it is characterized in that, described the media code stream that sends and/or receive is recorded after, also comprise: described video conference terminal is changed to storage agreement form with the media code circulation of recording and stores.
10. according to the method for the described realization recorded broadcast of session of claim 9, it is characterized in that the media code stream that described extraction is recorded also comprises before playing: described video conference terminal is changed to meeting agreement form with the media code circulation of extracting.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101787156A CN101179695A (en) | 2007-12-04 | 2007-12-04 | Method for implementing recorded broadcast of session, session television system and terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101787156A CN101179695A (en) | 2007-12-04 | 2007-12-04 | Method for implementing recorded broadcast of session, session television system and terminal |
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| CN101179695A true CN101179695A (en) | 2008-05-14 |
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| CNA2007101787156A Pending CN101179695A (en) | 2007-12-04 | 2007-12-04 | Method for implementing recorded broadcast of session, session television system and terminal |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413309A (en) * | 2011-12-27 | 2012-04-11 | 中兴通讯股份有限公司 | Method and device for joining video conference |
| WO2012175025A1 (en) * | 2011-06-21 | 2012-12-27 | 中兴通讯股份有限公司 | Remotely presented conference system, method for recording and playing back remotely presented conference |
| CN103327361A (en) * | 2012-11-22 | 2013-09-25 | 中兴通讯股份有限公司 | Method, device and system for obtaining real-time video communication playback data flow |
| CN106816055A (en) * | 2017-04-05 | 2017-06-09 | 杭州恒生数字设备科技有限公司 | A kind of low-power consumption live teaching broadcast recording and broadcasting system for interacting and method |
| CN112738451A (en) * | 2021-04-06 | 2021-04-30 | 浙江华创视讯科技有限公司 | Video conference recording and playing method, device, equipment and readable storage medium |
-
2007
- 2007-12-04 CN CNA2007101787156A patent/CN101179695A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012175025A1 (en) * | 2011-06-21 | 2012-12-27 | 中兴通讯股份有限公司 | Remotely presented conference system, method for recording and playing back remotely presented conference |
| CN102413309A (en) * | 2011-12-27 | 2012-04-11 | 中兴通讯股份有限公司 | Method and device for joining video conference |
| CN103327361A (en) * | 2012-11-22 | 2013-09-25 | 中兴通讯股份有限公司 | Method, device and system for obtaining real-time video communication playback data flow |
| WO2014079239A1 (en) * | 2012-11-22 | 2014-05-30 | 中兴通讯股份有限公司 | Method, apparatus and system for acquiring playback data stream of real-time video communication |
| CN103327361B (en) * | 2012-11-22 | 2018-09-04 | 南京中兴软件有限责任公司 | Acquisition methods, the apparatus and system of real-time video communication playback data stream |
| CN106816055A (en) * | 2017-04-05 | 2017-06-09 | 杭州恒生数字设备科技有限公司 | A kind of low-power consumption live teaching broadcast recording and broadcasting system for interacting and method |
| CN112738451A (en) * | 2021-04-06 | 2021-04-30 | 浙江华创视讯科技有限公司 | Video conference recording and playing method, device, equipment and readable storage medium |
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Open date: 20080514 |